Prognostic Impact of Adenosine Receptor 2 (A2aR) and Programmed Cell Death Ligand 1 (PD-L1) Expression in Colorectal Cancer

Table 3

Relationship between PD-L1 and A2aR expression in colorectal cancer (p-value was calculated by Spearman correlation test).

Variables	Positive A2aR expression	Negative A2aR expression	Total	r-value	p-value
Positive PD-L1 expression	56	28	84	0.548	<0.001
Negative PD-L1 expression	52	68	120
Total	108	96	204

Notes: PD-L1 expression was positive in 84 cases, of which 56 cases were also positive for A2aR (66.7%), and the remaining 28 cases were negative for A2aR (33.3%). Of the 120 PD-L1-negative expression specimens, 68 cases were also negative for A2aR (56.7%), while the remaining 52 cases were positive for A2aR (43.3%).